6. Classify the following as physical changes (PC), chemical changes (CC), physical properties (PP), and chemical properties (CP):
a. __An iron scorches a shirt when you leave it in one spot too long.
b. __ The tires on your car seem to be getting low in very cold weather.
c. __ Your grandmother's silver tea set gets black with tarnish over time.
d. __ Spray-on oven cleaner converts grease in the oven into a soapy material.
e. __ An ordinary flashlight battery begins to leak with age and can't be recharged.
f. __ Acids produced by bacteria in plaque cause teeth to decay.
g. __ Sugar chars if overheated while making homemade candy.
h. __ Hydrogen peroxide fizzes when applied to a wound.
i. __ Dry ice "evaporates" without melting as time passes.​